29. While Nexus phones are moving away from
physical buttons for
navigation, Samsung has
opted to include three.
There are capacitive buttons for Menu and Back, and a physical, clickable button for
Home.

30. The power button is conveniently mounted at the top right. In whichever way the phone is held, its an easy reach.

31. The controls (capacitive Menu, Back buttons and physical Home key) are vested with another executable. With a long press, the Menu
key Googles Now, Home key fetches the task switcher and Back button brings the side bar for the Multi-window piece. Likewise, when the home key is clicked twice, Svoice steps in.

32. Wireless charging.

33. Home button is raised a bit. Easy to press.

34. Two plastic banks, the mono speaker wont be bared when put on a flat surface, screen up.

35. The speaker is in the rear (lower left corner). Fingers wont muffle it.

36. A physical home button, a capacitive Back and
Menu keys, very handy for a phone of this size.

37. Most buttons remain in the same places. The home button is in the home. Seems reluctant to step out of the comfort zone. The power button, Volume Rocker and Headphone Socket haven't changed their positions. Apparently Democratic!

44. Ambient light and proximity sensor collaborate with Air gestures and let the user find a whole new world.

Repairability

45. The S4 came through iFixit's teardown with flying colors, receiving an 8 out of 10 repairability score for its replaceable battery and straightforward disassembly. A removable battery ups the S4's repairability factor.